AP EAMCET · Maths · Determinants
- A
- B
- C
- D
Answer & Solution
Correct Answer
(C)
Step-by-step Solution
Detailed explanation
Let △=b+caabc+abcca+b. Applying R1→R1+R2+R3 △=b+c+b+ca+c+a+ca+b+a+bbc+abcca+b ⇒△=2b+c2a+c2a+bbc+abcca+b ⇒△=2b+ca+ca+bbc+abcca+b Applying R1→R1-R2 ⇒△=2b+c-ba+c-(c+a)a+b-bbc+abcca+b ⇒△=2c0abc+abcca+b Applying…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- Two sides of a triangle are given. If the area of the triangle is maximum, then the angle between the given sides isAP EAMCET 2022 Medium
- The length of the subtangent at \((2,2)\) to the curve \(x^5=2 y^4\) isAP EAMCET 2008 Easy
- If three numbers are drawn at random successively without replacement from a set \(S=\{1,2, \ldots 10\}\), then the probability that the minimum of the chosen numbers is 3 or their maximum is 7 .AP EAMCET 2017 Medium
- If the error committed in measuring the radius of the circle is , then the corresponding error in calculating the area isAP EAMCET 2021 Medium
- In \(\triangle P Q R, M\) is the mid-point of \(Q R\) and \(C\) is the mid-point of \(P M\). If \(Q C\) when extended meets \(P R\) at \(N\), then \(\frac{|\overrightarrow{Q N}|}{|\overline{C N}|}=\)AP EAMCET 2018 Medium
- Let \(x, y\) be real numbers such that \(x \neq y\) and \(x y \neq 1\). If \(a x+b \sec \left(\tan ^{-1} x\right)=c\) and \(a y+b \sec \left(\tan ^{-1} y\right)=c\), then \(\frac{x+y}{1-x y}=\)AP EAMCET 2018 Medium
More PYQs from AP EAMCET
- \(P\) and \(Q\) are points on the straight line passing through the point \(A(3 \hat{\mathbf{i}}+\hat{\mathbf{j}}-\hat{\mathbf{k}})\) and parallel to the vector \(2 \hat{\mathbf{i}}-\hat{\mathbf{j}}+2 \hat{\mathbf{k}}\), If \(A P=A Q=3\), then the vector equation of the plane \(O P Q\) isAP EAMCET 2018 Medium
- Angle made by the position vector of the point with the positive direction of axis isAP EAMCET 2021 Easy
- If \(n>0\) and \(\lim _{x \rightarrow 0} \frac{((a-n) n x-\tan x) \sin n x}{x^2}=0\), then minimum value of \(a\) isAP EAMCET 2022 Easy
- A steel wire of length \(20 \mathrm{~cm}\) and area of crosssection \(1 \mathrm{~mm}^2\) is tied rigidly at both the ends. When the temperature of the wire is changed from \(40^{\circ} \mathrm{C}\) to \(20^{\circ} \mathrm{C}\), find the change in its tension. Given, the coefficient of linear expansion for steel is \(1.1 \times 10^{-5}{ }^{\circ} \mathrm{C}^{-1}\) and Young's modulus of steel is \(2.0 \times 10^{11} \mathrm{Nm}^{-2}\).AP EAMCET 2020 Hard
- When an external force with angular frequency \(\omega_d\) acts on a system of natural angular frequency \(\omega\), the system oscillates with angular frequency \(\omega_{\mathrm{d}}\). The condition for the amplitude of oscillations to be maximum isAP EAMCET 2023 Easy
- If \((2,-1,2)\) and \((K, 3,5)\) are the triads of direction ratios of two lines and the angle between them is \(45^{\circ}\), then the value of \(K\) isAP EAMCET 2015 Easy